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authorKeith Whitwell <keith@tungstengraphics.com>2004-12-30 16:30:26 +0000
committerKeith Whitwell <keith@tungstengraphics.com>2004-12-30 16:30:26 +0000
commitc664f0c5155da800c34de1783754313e86654eda (patch)
tree2d8c7ab7452a987b432367191d1f5bd619f57189 /src/mesa/drivers/dri/unichrome/via_context.c
parent8be4747fd642aef719f9ee55a42f05fe69a043eb (diff)
Calculate DEPTH_SCALE correctly for polygon offset.
Diffstat (limited to 'src/mesa/drivers/dri/unichrome/via_context.c')
-rw-r--r--src/mesa/drivers/dri/unichrome/via_context.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/unichrome/via_context.c b/src/mesa/drivers/dri/unichrome/via_context.c
index b3cc66f087..4c70af60c8 100644
--- a/src/mesa/drivers/dri/unichrome/via_context.c
+++ b/src/mesa/drivers/dri/unichrome/via_context.c
@@ -356,6 +356,7 @@ viaCreateContext(const __GLcontextModes *mesaVis,
vmesa->depth_max = (GLfloat)0xffff;
vmesa->depth_clear_mask = 0xf << 28;
vmesa->ClearDepth = 0xffff;
+ vmesa->polygon_offset_scale = 1.0 / vmesa->depth_max;
break;
case 24:
vmesa->hasDepth = GL_TRUE;
@@ -370,6 +371,7 @@ viaCreateContext(const __GLcontextModes *mesaVis,
vmesa->have_hw_stencil = GL_TRUE;
vmesa->stencilBits = mesaVis->stencilBits;
vmesa->stencil_clear_mask = 0x1 << 28;
+ vmesa->polygon_offset_scale = 2.0 / vmesa->depth_max;
break;
case 32:
vmesa->hasDepth = GL_TRUE;
@@ -380,6 +382,7 @@ viaCreateContext(const __GLcontextModes *mesaVis,
vmesa->depth_clear_mask = 0;
vmesa->ClearDepth = 0xffffffff;
vmesa->depth_clear_mask = 0xf << 28;
+ vmesa->polygon_offset_scale = 2.0 / vmesa->depth_max;
break;
default:
assert(0);